نتایج جستجو برای: cubic function

تعداد نتایج: 1233847  

2007
JACOB VOSMAER

The essentially Σ1 formulae of ΣL are exactly those which are provably equivalent to a disjunction of conjunctions of 2 and Σ1 formulae.

Journal: :Int. J. Math. Mathematical Sciences 2006
Saban Alaca Blair K. Spearman Kenneth S. Williams

2014
Martin Josefsson M. Josefsson

We prove eight necessary and sufficient conditions for a convex quadrilateral to have congruent diagonals, and one dual connection between equidiagonal and orthodiagonal quadrilaterals. Quadrilaterals with both congruent and perpendicular diagonals are also discussed, including a proposal for what they may be called and how to calculate their area in several ways. Finally we derive a cubic equa...

2011
Padmini Mukkamala Dömötör Pálvölgyi

We show that every cubic graph can be drawn in the plane with straight-line edges using only the four basic slopes {0, π/4, π/2, 3π/4}. We also prove that four slopes have this property if and only if we can draw K4 with them.

2008
Irene Polo-Blanco

The topological classification of smooth real cubic surfaces is recalled and compared to the classification in terms of the number of real lines and of real tritangent planes, as obtained by L. Schläfli in 1858. Using this, explicit examples of surfaces of every possible type are given.

2015
Jonathan A.D. Wattis

We outline the small amplitude asymptotic approximation for breathers for one-dimensional chains, and two-dimensional lattices with square, triangular/hexagonal, and honeycomb geometries. Two-dimensional lattices are complicated due to the resulting NLS-type equation being either elliptic or hyperbolic in nature. This gives rise to an additional constraint in addition to the usual condition on ...

2016
MAXIM YATTSELEV

We prove the topological expansion for the cubic log-gas partition function

اکبرزاده, هادی, تربتیان, زهرا, جبلی, هدی‌السادات, هاشمی‌فر, سیدجواد,

Calculation of Hall coefficient in semiclassical approach requires the first and the second derivatives of the energy bands at the Fermi level. We use the Maximally Localized Wannier Function technique to determine the required band derivatives and calculate the ordinary Hall conductivity and ordinary Hall coefficient in Al,Cu, Pd, Li, Au, Ag and Pb cubic metals.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید